diff options
Diffstat (limited to '3802/CH4')
34 files changed, 407 insertions, 0 deletions
diff --git a/3802/CH4/EX4.1/Ex4_1.jpg b/3802/CH4/EX4.1/Ex4_1.jpg Binary files differnew file mode 100644 index 000000000..3728b4790 --- /dev/null +++ b/3802/CH4/EX4.1/Ex4_1.jpg diff --git a/3802/CH4/EX4.1/Ex4_1.sce b/3802/CH4/EX4.1/Ex4_1.sce new file mode 100644 index 000000000..52c23bc3b --- /dev/null +++ b/3802/CH4/EX4.1/Ex4_1.sce @@ -0,0 +1,22 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_1.sce.
+
+clc;
+clear;
+Q1=2e-9; //Sphere 1 charges in coulomb
+Q2=-0.5e-9; //Sphere 2 charges in coulomb
+r=4e-2; //Distance between the two spheres in m
+epsilon_not=1/(36e9*%pi);
+printf("\n(a)")
+F=-(Q1*Q2)/(4*%pi*epsilon_not*r^2); //Coulomb's law
+printf("\n Force between two spheres when they are displaced 4cm apart=%1.4f*10^-5 N Attractive\n",F*1e5)
+
+printf("\n(b)")
+q=(Q1+Q2)/2;
+F=(q^2)/(4*%pi*epsilon_not*r^2)
+printf("\n Force between two spheres if they are brought into contact and separated by 4cm =%1.4f*10^-5 N repulsive\n",F*1e5)
+
diff --git a/3802/CH4/EX4.11/Ex4_11.jpg b/3802/CH4/EX4.11/Ex4_11.jpg Binary files differnew file mode 100644 index 000000000..db501f08a --- /dev/null +++ b/3802/CH4/EX4.11/Ex4_11.jpg diff --git a/3802/CH4/EX4.11/Ex4_11.sce b/3802/CH4/EX4.11/Ex4_11.sce new file mode 100644 index 000000000..48ad8bd75 --- /dev/null +++ b/3802/CH4/EX4.11/Ex4_11.sce @@ -0,0 +1,25 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_11.sce.
+
+clc;
+clear;
+q=1e-6;
+l=2e-2;
+E=1e5;
+
+printf("\n (a)")
+theta=90;
+p=l*q;
+T_max=p*E*sind(theta);
+printf("\n The maximum torque=%1.1f*10^-3 Nm\n",T_max*1e3)
+
+printf("\n (b)")
+U_180=-p*E*cosd(180); //U is the potential energy for theta=180 degree and 0 degree
+U_0=-p*E*cosd(0);
+W=(U_180)-(U_0);
+printf("\n The work done=%1.1f*10^-3 J",W*1e3)
+
diff --git a/3802/CH4/EX4.14/Ex4_14.jpg b/3802/CH4/EX4.14/Ex4_14.jpg Binary files differnew file mode 100644 index 000000000..b955389cf --- /dev/null +++ b/3802/CH4/EX4.14/Ex4_14.jpg diff --git a/3802/CH4/EX4.14/Ex4_14.sce b/3802/CH4/EX4.14/Ex4_14.sce new file mode 100644 index 000000000..7e3611832 --- /dev/null +++ b/3802/CH4/EX4.14/Ex4_14.sce @@ -0,0 +1,14 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_14.sce.
+
+clc;
+clear;
+V=100;
+epsilon_not=8.854e-12;
+r=10e-2;
+q=4*%pi*epsilon_not*r*V;
+printf("\n Magnitude value of isolated positive charge=%1.2g*10^-9 coulomb",q*1e9)
diff --git a/3802/CH4/EX4.15/Ex4_15.jpg b/3802/CH4/EX4.15/Ex4_15.jpg Binary files differnew file mode 100644 index 000000000..02e7acfd7 --- /dev/null +++ b/3802/CH4/EX4.15/Ex4_15.jpg diff --git a/3802/CH4/EX4.15/Ex4_15.sce b/3802/CH4/EX4.15/Ex4_15.sce new file mode 100644 index 000000000..edb73f642 --- /dev/null +++ b/3802/CH4/EX4.15/Ex4_15.sce @@ -0,0 +1,15 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_15.sce.
+
+clc;
+clear;
+q=1e-9;
+r_p=10e-2;
+r_q=20e-2;
+epsilon_not=8.854e-12;
+V=(q/(4*%pi*epsilon_not))*((1/r_p)-(1/r_q));
+printf("\n The potential difference between the two points=%2.0f volt",V)
diff --git a/3802/CH4/EX4.16/Ex4_16.jpg b/3802/CH4/EX4.16/Ex4_16.jpg Binary files differnew file mode 100644 index 000000000..b3fc3652f --- /dev/null +++ b/3802/CH4/EX4.16/Ex4_16.jpg diff --git a/3802/CH4/EX4.16/Ex4_16.sce b/3802/CH4/EX4.16/Ex4_16.sce new file mode 100644 index 000000000..cbcb797ed --- /dev/null +++ b/3802/CH4/EX4.16/Ex4_16.sce @@ -0,0 +1,21 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_16.sce.
+
+clc;
+clear;
+q1=-2e-9;
+q2=3e-9;
+q3=2e-9;
+q4=1e-9;
+AB=1; //Given square side as 1 metre
+BC=1;
+epsilon_not=8.854e-12;
+AP=sqrt(AB^2+BC^2)/2; //formula derived from the figure
+Vp=(1/(4*%pi*epsilon_not*AP))*(q1+q2+q3+q4);
+printf("\n Potential at the centre of the square=%2.2f volt",Vp)
+
+//Answer vary due to roundoff error
diff --git a/3802/CH4/EX4.18/Ex4_18.jpg b/3802/CH4/EX4.18/Ex4_18.jpg Binary files differnew file mode 100644 index 000000000..7cd9406a3 --- /dev/null +++ b/3802/CH4/EX4.18/Ex4_18.jpg diff --git a/3802/CH4/EX4.18/Ex4_18.sce b/3802/CH4/EX4.18/Ex4_18.sce new file mode 100644 index 000000000..3f8a2a4a3 --- /dev/null +++ b/3802/CH4/EX4.18/Ex4_18.sce @@ -0,0 +1,24 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_18.sce.
+clc;
+clear;
+Q1=3e-6;
+Q2=2e-6;
+a=9e9; //a=(1/(4*%pi*epsilon_not))
+
+x=1;y=2;z=3;
+
+//V=-a*((Q1/(sqrt((x-1)^2+(y-1)^2+(z-1)^2)))+(Q2/(sqrt((x-1)^2+(y-3)^2+(z-2)^2))));
+
+dV_dx=-a*((Q1*(x-1)/((x-1)^2+(y-1)^2+(z-1)^2)^(3/2))+(Q2*(x-1)/((x-1)^2+(y-3)^2+(z-2)^2)^(3/2))); //differentietion of potential with respect to x
+
+dV_dy=-a*((Q1*(y-1)/((x-1)^2+(y-1)^2+(z-1)^2)^(3/2))+(Q2*(y-3)/((x-1)^2+(y-3)^2+(z-2)^2)^(3/2))); //differentietion of potential with respect to y
+
+dV_dz=-a*((Q1*(z-1)/((x-1)^2+(y-1)^2+(z-1)^2)^(3/2))+(Q2*(z-2)/((x-1)^2+(y-3)^2+(z-2)^2)^(3/2))); //differentietion of potential with respect to z
+
+//E=-(del_V)
+printf("\n E=(%gi)+(%4.0fj)+(%5.0fk) V/m",-dV_dx,-dV_dy,-dV_dz)
diff --git a/3802/CH4/EX4.19/Ex4_19.jpg b/3802/CH4/EX4.19/Ex4_19.jpg Binary files differnew file mode 100644 index 000000000..34c22f0a0 --- /dev/null +++ b/3802/CH4/EX4.19/Ex4_19.jpg diff --git a/3802/CH4/EX4.19/Ex4_19.sce b/3802/CH4/EX4.19/Ex4_19.sce new file mode 100644 index 000000000..e6faed92b --- /dev/null +++ b/3802/CH4/EX4.19/Ex4_19.sce @@ -0,0 +1,43 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_19.sce.
+
+clc;
+clear;
+r1=3e-2;
+r2=6e-2;
+r3=9e-2;
+q1=9e-12;
+q2=-6e-12;
+q3=3e-12;
+d1=2e-2;
+d2=4e-2;
+d3=7e-2;
+d4=12e-2;
+epsilon_not=8.854e-12;
+a=9e9; //a=1/(4*%pi*epsilon_not);
+
+printf("\n Field strength and potentials for point a,b,c,d are ,")
+Ea=0;
+printf("\n\t Ea=%g N/C",Ea)
+Va=a*((q1/r1)+(q2/r2)+(q3/r3));
+printf("\n\t Va=%g V \n",Va)
+
+Eb=a*(q1/d2^2);
+printf("\n\t Eb=%g N/C",Eb)
+Vb=a*((q1/d2)+(q2/r2)+(q3/r3));
+printf("\n\t Vb=%g V \n",Vb)
+
+Ec=a*((q1/d3^2)+(q2/d3^2));
+printf("\n\t Ec=%1.2f N/C",Ec)
+Vc=a*((q1/d3)+(q2/d3)+(q3/r3));
+printf("\n\t Vc=%1.3f V \n",Vc)
+
+Ed=(a/d4^2)*(q1+q2+q3);
+printf("\n\t Ed=%g N/C",Ed)
+Vd=(a/d4)*(q1+q2+q3);
+printf("\n\t Vd=%g V \n",Vd)
+//There is a error in book calculation on Vc. In the book Vc=0.762 volt instead of 0.6857 volt
diff --git a/3802/CH4/EX4.22/Ex4_22.jpg b/3802/CH4/EX4.22/Ex4_22.jpg Binary files differnew file mode 100644 index 000000000..285acf13c --- /dev/null +++ b/3802/CH4/EX4.22/Ex4_22.jpg diff --git a/3802/CH4/EX4.22/Ex4_22.sce b/3802/CH4/EX4.22/Ex4_22.sce new file mode 100644 index 000000000..df93e8765 --- /dev/null +++ b/3802/CH4/EX4.22/Ex4_22.sce @@ -0,0 +1,34 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_22.sce.
+
+clc;
+clear;
+V=2.5; //potential difference of the plates in kv
+x=0.25; //distance between two parallel plates in cm
+x1=0.02; //airgap in between the parallel plates in cm
+x2=0.23; //thickness of fibre sheet in the gap in cm
+epsilon_r=5;
+
+//As the eletric displacement is perpendicular to the boundary
+//D=D1=D2; , D1=epsilon_not*E1; , D2=epsilon_not*epsilon_r*E2;
+//from this E1=5*E2;
+
+//V=V1+V2; V1=x1*E1; V2=x2*E2;
+//from this we can find the equation of E2
+
+E2=V/((x1*epsilon_r)+(x2));
+E1=5*E2;
+
+printf("\n Electric field strength in air , E1=%2.2f kV/cm \n",E1)
+printf("\n Electric field strength in the fibre , E2=%1.3f kV/cm \n",E2)
+
+E=30; //Dielectric strength of air in kV/cm
+if (E1>E)
+ printf("\n The air will break.")
+else
+ printf("\n The air will not break.")
+end
diff --git a/3802/CH4/EX4.24/Ex4_24.jpg b/3802/CH4/EX4.24/Ex4_24.jpg Binary files differnew file mode 100644 index 000000000..1388818a3 --- /dev/null +++ b/3802/CH4/EX4.24/Ex4_24.jpg diff --git a/3802/CH4/EX4.24/Ex4_24.sce b/3802/CH4/EX4.24/Ex4_24.sce new file mode 100644 index 000000000..b0cfd9aed --- /dev/null +++ b/3802/CH4/EX4.24/Ex4_24.sce @@ -0,0 +1,28 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_24.sce.
+
+clc;
+clear;
+d=1e-2;
+l=15e-2;
+h=10e-2;
+Q=750e-12;
+epsilon_not=8.854e-12;
+
+A=l*h;
+C=(epsilon_not*A)/d;
+printf("\n Capacitance=%2.3f pF \n",C*1e12)
+V=Q/C;
+printf("\n Potential difference=%2.1f volt \n",V)
+
+epsilon_r=4;
+C=(epsilon_not*epsilon_r*A)/d;
+printf("\n New capacitance=%2.3f pF \n",C*1e12)
+V=Q/C;
+printf("\n New potential difference=%2.3f volt \n",V)
+
+//There is a error in the book calculation for finding new potential difference(V) ,the answer is given V=14.125 volt insteadof 14.118 volt
diff --git a/3802/CH4/EX4.26/Ex4_26.jpg b/3802/CH4/EX4.26/Ex4_26.jpg Binary files differnew file mode 100644 index 000000000..bf5ec21b9 --- /dev/null +++ b/3802/CH4/EX4.26/Ex4_26.jpg diff --git a/3802/CH4/EX4.26/Ex4_26.sce b/3802/CH4/EX4.26/Ex4_26.sce new file mode 100644 index 000000000..907fa7925 --- /dev/null +++ b/3802/CH4/EX4.26/Ex4_26.sce @@ -0,0 +1,33 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_26.sce.
+
+clc;
+clear;
+d_i=5e-3; //Diameter of inner cylinder in metre
+d_o=15e-3; //Diameter of outer cylinder in metre
+epsilon_r=4;
+V=500;
+epsilon_not=8.854e-12;
+epsilon=epsilon_r*epsilon_not;
+a=d_i/2;
+b=d_o/2;
+C=(2*%pi*epsilon)/(log(b/a));
+printf("\n Capacitance of the cable=%3.2f pF/m \n",C*1e12)
+
+printf("\n(a)")
+p_l=C*V; //Electric displacement through a cylindrical area of unit length in C/m
+D=p_l/(2*%pi*a);
+E=D/epsilon;
+printf("\n The electric flux density at the surface of inner conductor=%1.3f micro_C/m^2",D*1e6)
+printf("\n The electric field intensity at the surface of inner conductor=%3.0f kV/m \n",E*1e-3)
+
+printf("\n(b)")
+D=p_l/(2*%pi*b);
+E=D/epsilon;
+printf("\n The electric flux density at the inner surface of outer conductor=%1.3f micro_C/m^2",D*1e6)
+printf("\n The electric field intensity at the inner surface of outer conductor=%2.3f kV/m \n",E*1e-3)
+//Answer vary dueto round off error
diff --git a/3802/CH4/EX4.27/Ex4_27.jpg b/3802/CH4/EX4.27/Ex4_27.jpg Binary files differnew file mode 100644 index 000000000..a6a4f8fa5 --- /dev/null +++ b/3802/CH4/EX4.27/Ex4_27.jpg diff --git a/3802/CH4/EX4.27/Ex4_27.sce b/3802/CH4/EX4.27/Ex4_27.sce new file mode 100644 index 000000000..3a79fda6d --- /dev/null +++ b/3802/CH4/EX4.27/Ex4_27.sce @@ -0,0 +1,15 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_27.sce.
+
+clc;
+clear;
+l=4e3;
+b=2*75e-2;
+a=2.5e-2;
+epsilon_not=8.854e-12;
+C=(%pi*epsilon_not*l)/log(b/a);
+printf("\n Capacitance of the transmission line=%1.4f micro farad",C*1e6)
diff --git a/3802/CH4/EX4.28/Ex4_28.jpg b/3802/CH4/EX4.28/Ex4_28.jpg Binary files differnew file mode 100644 index 000000000..8ee59508b --- /dev/null +++ b/3802/CH4/EX4.28/Ex4_28.jpg diff --git a/3802/CH4/EX4.28/Ex4_28.sce b/3802/CH4/EX4.28/Ex4_28.sce new file mode 100644 index 000000000..49d756ffd --- /dev/null +++ b/3802/CH4/EX4.28/Ex4_28.sce @@ -0,0 +1,23 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_28.sce.
+
+clc;
+clear;
+t1=1.5; //Insulation thickness of conductor in cm
+d_c=1.5; //Diameter of conductor in cm
+a1=d_c/2;
+b1=a1+t1;
+R1=500; //Insulation resistance in megaohm for a given thickness
+R2=700; //Insulation resistance in megaohm for a unknown thickness
+
+//R=(p/(2*%pi*l))*log(b/a) R1=(p/(2*%pi*l))*log(b1/a1) R2=(p/(2*%pi*l))*log(b2/a2)
+
+a2=d_c/2;
+b2=a2; //b2 is the sum of a2 and unknown thickness
+
+t2=a2*(b1/a1)^(R2/R1)-b2; //thickness of 700 megaohm resistance insulation in cm
+printf("\n Insulation thickness of the cable if insulation resistance is 700 megaohm=%1.3f cm",t2)
diff --git a/3802/CH4/EX4.29/Ex4_29.jpg b/3802/CH4/EX4.29/Ex4_29.jpg Binary files differnew file mode 100644 index 000000000..6ef30caa9 --- /dev/null +++ b/3802/CH4/EX4.29/Ex4_29.jpg diff --git a/3802/CH4/EX4.29/Ex4_29.sce b/3802/CH4/EX4.29/Ex4_29.sce new file mode 100644 index 000000000..077c958f1 --- /dev/null +++ b/3802/CH4/EX4.29/Ex4_29.sce @@ -0,0 +1,27 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_29.sce.
+
+clc;
+clear;
+Q1=60e-6; //Capacitor charges in coulomb
+V1=180; //Volatge in volt
+
+C1=Q1/V1;
+C2=4*C1;
+Q2=0;
+E1=(1/2)*C1*V1^2; //Before two capacitance are joined the energy stored in C1
+E2=0; //Energy stored in C2
+Ea=E1+E2; //Total energy before two capacitors are joined
+V=(Q1+Q2)/(C1+C2); //Potential in volt
+
+E1=(1/2)*C1*V^2; //Energy stored in C1 in joule
+E2=(1/2)*C2*V^2; //Energy stored in C2 in joule
+Eb=E1+E2; //Total energy after two capacitors are joined
+
+E_loss=Ea-Eb;
+printf("\n Loss of energy=%2.1f*10^-4 joule",E_loss*1e4)
+
diff --git a/3802/CH4/EX4.3/Ex4_3.jpg b/3802/CH4/EX4.3/Ex4_3.jpg Binary files differnew file mode 100644 index 000000000..f9b7b6eab --- /dev/null +++ b/3802/CH4/EX4.3/Ex4_3.jpg diff --git a/3802/CH4/EX4.3/Ex4_3.sce b/3802/CH4/EX4.3/Ex4_3.sce new file mode 100644 index 000000000..c884f6ef4 --- /dev/null +++ b/3802/CH4/EX4.3/Ex4_3.sce @@ -0,0 +1,29 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_3.sce
+
+clc;
+clear;
+r=[-0.03 0.01 0.04];
+r_dash=[0.03 0.08 -0.02];
+Q1=129e-9;
+Q2=110e-6;
+epsilon_not=1/(36*%pi*1e9);
+
+a=r-r_dash; //r and r_dash are the position of two charges
+b=a.^2;
+c=b(1,1)+b(1,2)+b(1,3);
+d=sqrt(c); //b,c,d are assumed alphabets for calculating magnitude of difference of r and r'
+
+F=(Q1*Q2)/(4*%pi*epsilon_not*d^2);
+printf("\n The force on Q2=%2.1f N \n",F)
+Ir=a/d;
+F1=Ir*F;
+printf("\n Force interms of i,j,k vector coefficient is")
+disp(F1)
+
+//There is a error in the book for calculating F value
+//So answer given in the book is wrong
diff --git a/3802/CH4/EX4.4/Ex4_4.jpg b/3802/CH4/EX4.4/Ex4_4.jpg Binary files differnew file mode 100644 index 000000000..3b0e7aef5 --- /dev/null +++ b/3802/CH4/EX4.4/Ex4_4.jpg diff --git a/3802/CH4/EX4.4/Ex4_4.sce b/3802/CH4/EX4.4/Ex4_4.sce new file mode 100644 index 000000000..50f4489ba --- /dev/null +++ b/3802/CH4/EX4.4/Ex4_4.sce @@ -0,0 +1,15 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_4.sce.
+
+clc;
+clear;
+q=1.6e-19;
+m=9.1e-31;
+g=9.8;
+F=m*g;
+E=F/q;
+printf("\n Magnitude of electric field intensity E=%1.1f*10^-11 N/C",E*1e11)
diff --git a/3802/CH4/EX4.5/Ex4_5.jpg b/3802/CH4/EX4.5/Ex4_5.jpg Binary files differnew file mode 100644 index 000000000..80ece4a00 --- /dev/null +++ b/3802/CH4/EX4.5/Ex4_5.jpg diff --git a/3802/CH4/EX4.5/Ex4_5.sce b/3802/CH4/EX4.5/Ex4_5.sce new file mode 100644 index 000000000..ae2ce6433 --- /dev/null +++ b/3802/CH4/EX4.5/Ex4_5.sce @@ -0,0 +1,25 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_5.sce.
+
+clc;
+clear;
+//from the given figure
+q=1e-8;
+OB=sqrt(5^2-4^2); //Distance between point O and B
+cos_theta=3/5;
+sin_theta=4/5;
+r=5e-2;
+
+epsilon_not=1/(36e9*%pi);
+modulus_E=q/(4*%pi*epsilon_not*r^2);
+E1=((modulus_E*cos_theta)-(modulus_E*sin_theta*%i));
+E2=((-modulus_E*cos_theta)-(modulus_E*sin_theta*%i));
+E=E1+E2;
+disp(E,'The resultant field intensity in N/C is')
+
+
+
diff --git a/3802/CH4/EX4.7/Ex4_7.jpg b/3802/CH4/EX4.7/Ex4_7.jpg Binary files differnew file mode 100644 index 000000000..4c37474dc --- /dev/null +++ b/3802/CH4/EX4.7/Ex4_7.jpg diff --git a/3802/CH4/EX4.7/Ex4_7.sce b/3802/CH4/EX4.7/Ex4_7.sce new file mode 100644 index 000000000..e264debea --- /dev/null +++ b/3802/CH4/EX4.7/Ex4_7.sce @@ -0,0 +1,14 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex4_7.sce.
+
+clc;
+clear;
+q1=1e-4;
+q2=2e-4;
+l=10e-2;
+x=l*1e2/(1+sqrt(q2/q1));
+printf("\n Distance between q1 and the point on the line joining two charges where the electric field is zero=%1.1f cm",x)
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